How to Build Your First Simple App Using GitHub Copilot in 2026

Building your first app can feel like a daunting task, especially if you're not a seasoned developer. You've probably heard that GitHub Copilot can help you code faster and smarter, but does it really make the process easier for beginners? In this guide, I’ll show you how to leverage GitHub Copilot to build a simple app in just 2 hours. Let’s dive in!

Time Estimate and Prerequisites

Time: You can finish this in about 2 hours.
Prerequisites:

• A GitHub account (Free)
• Visual Studio Code (Free)
• GitHub Copilot subscription ($10/mo after a 30-day free trial)

Before we start, make sure you have Visual Studio Code installed and that you've signed up for GitHub Copilot. The free trial is a great way to get started.

Step-by-Step Guide to Building Your App

Step 1: Set Up Your Development Environment

1. Install Visual Studio Code.

   • Download it from here.

2. Install GitHub Copilot.

   • Open Visual Studio Code, go to the extensions panel, and search for "GitHub Copilot". Click install.

3. Create a new project folder.

   • Open your terminal and run:

     mkdir my-first-app
     cd my-first-app
     code .
     

Step 2: Start Coding

2.1 Create Your Main File

1. Create an index.js file.

   • In your project folder, create a new file named index.js.

2. Initialize your app.

   • Start typing a simple function in index.js. For example:

     function greet(name) {
         return `Hello, ${name}!`;
     }
     

3. Use GitHub Copilot to autocomplete.

   • As you type, Copilot will suggest completions. Accept suggestions by hitting the Tab key.

2.2 Build Out Features

1. Add a simple web server.

   • Type const http = require('http'); and let Copilot suggest the rest for a basic server setup.

2. Listen for requests.

   • Implement a simple response to incoming HTTP requests. Just start typing server.on('request', (req, res) => { and see what Copilot suggests.

Expected Output

After completing these steps, running node index.js in your terminal should start a simple web server that greets users.

Troubleshooting Common Issues

• Copilot isn't suggesting? Make sure it's enabled in your settings. Go to Preferences > Settings, search for "Copilot," and verify it's turned on.
• Server not starting? Double-check your code for syntax errors. Copilot's suggestions are helpful, but you might need to tweak them.

What's Next?

Once your app is running, consider expanding its functionality. You could add features like form handling, database integration, or even deploy it using platforms like Heroku or Vercel.

Tool Comparison: GitHub Copilot vs. Other AI Coding Tools

| Tool Name | Pricing | Best For | Limitations | Our Take | |----------------------|-----------------------------|-----------------------------------|------------------------------------------|--------------------------------------| | GitHub Copilot | $10/mo after 30-day trial | Beginners needing coding help | Limited to suggestions; not a full IDE | We use this for quick coding tasks. | | Tabnine | Free tier + $12/mo pro | Autocompletion for multiple languages | Less context-aware than Copilot | We don't use this because it lacks context. | | Replit | Free + $20/mo for teams | Collaborative coding | Can be slow for larger projects | We tried this, but prefer local dev. | | Codeium | Free + Paid plans | AI-assisted coding in any IDE | Newer, less refined suggestions | Not enough experience to recommend. | | Sourcery | Free + $12/mo pro | Python code improvement | Limited to Python only | We don’t use it since we work in JS. |

Conclusion: Start Here

If you're looking to quickly build your first app, GitHub Copilot is a powerful tool that can help you code efficiently. Start by setting up your environment and following the steps above. Remember, while Copilot is a great assistant, you'll still need to understand the basics of coding to make the most of it.

Ready to build? Go for it!